SolidOak built-in terminal does not recognize terminated process

Steps to reproduce:

build latest master of solidoak on debian testing, as described in README.md.
create new project, by clicking "New Project" button. A hello world example gets created.
click "Run" button.

Expected:

cargo run should compile the project and print "Hello, world!" to the built-in console

Observed:

project gets compiled, no "Hello, world!" output visible
built-in console stuck
when pressing "Stop" button, the ===Finished=== string appears, but no Hello world

Some debugging: (Please note I'm an absolute newbie to rust. Therefore my debugging capabilities are quite limited. Sorry about that.)

extend the hello world program to one which takes some input (e.g. guessing game example from doc.rust-lang.org), so that the process does not terminate immediately
after compilation, the program runs, prints out some println and I can enter a string
after entering a string, the program is supposed to print a message and exit.
no println message visible, built-in console stuck again

change solidoak code: builders.rs file, run_builder function to print the pid of the process started by cargo run. Recompile solidoak:

            match term.fork_command(project_path_str.as_ref(), args) {
                Ok(pid) => { 
                    println!("pid {}",pid);
                    *current_pid = pid 
                },

in the xterm where I started solidoak, I see the pid of the process that was started by cargo run, when I click the "Run" button
with ps aux | grep PIDNR, I can verify that the program is running
I enter some string to the built-in console, I expect the process to end
I can verify with ps that the process actually ended
The built-in terminal did not recoginze that the process ended: Last println! messages not visible and built-in terminal stuck, I have to press "Stop" button

oakes / SolidOak

SolidOak built-in terminal does not recognize terminated process #61